If you have installed 4000 linear feet of 8 inch water pipe how much will it hold when full? (answe is 10,543) i need writing it out

Step-by-step explanation:

we know that

The volume of a cylinder (water pipe) is equal to

In this problem we have

-----> the radius is half the diameter

----> convert to inches

b. an equilateral triangle inscribed in a circle

step-by-step explanation:

we are given the figure of two circles having a triangle inside.

now, we know that,

"when a figure is lying inside an another figure, then the outside figure is known as circumscribed figure and the figure lying inside is referred to as the inscribed figure".

as we see that, the circles are containing the triangle completely.

thus, the circles are the circumscribed figures and the triangle is the inscribed figure.

hence, we get, 'an equilateral triangle is inscribed in a circle'.

option: d is correct

step-by-step explanation: